Harrow and pulverizer.



No. 64l,530. Patented Jan. l6, i900.

H. a. MOSHER.

HARROW AND PULVERIZER.

(Application filed Aug. 17, 1899.)

(No Model.)

N TOR 114: News PETERS co. PHUTO-LITHO. WASHINGTON, n. c

. STATES ATEN Eric.

HENRY G. MOSI-IER, OF FAIRMOUNT, NEBRASKA.

HARROW AND PU LVERIZER.

SPECIFICATION forming part of Letters Patent No. 641,530, dated January16, 1900.

Application filed August 17, 1899. Serial No. 727,550. (No model.)

To aZZ whom it may concern.-

Be it known that I, HENRY G. MOSHER, of Fairmount, in the county ofFillmore and State of Nebraska, have invented a new and Improved Harrowand Pulverizer, of which the following is a full, clear, and exactdescription.

The object of the invention is to construct a harrow and pulverizer withcrushing-plates and toothed bars so arranged that both may be adjustedat the same time or whereby the plates may be adjusted independently ofthe toothed bars.

A further object of the invention is to so group the plates and toothedbars that the plates when placed parallel with the ground will insurethe teeth entering the soil the desired depth, thus enabling a field tobe harrowed even when young plants are about appearing at the surfaceof'the soil.

The invention consists in the novel construction and combination of theseveral parts, as will be hereinafter fully set forth, and pointed outin the claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a side elevation of the improved machine. Fig. 2 is a planView thereof, an end portion being broken away. Fig. 3 is a detail viewof a portion of one of the toothed bars, a part of the bar being brokenaway and a tooth appearing in section. Fig. 4 is a transverse sectionthrough one of the toothed bars, illustrating a tooth in side elevation;and Fig. 5 is a plan view of a portion of the machine, illustrating amodification in the bearings for the toothed bars.

, Two or more straps 10 of suitable thickness are placed parallel toeach other a given distance apart, and said strips extend in directionof the front and rear of the machine. Each strap at its forward end isprovided with a clevis 11 or other form of draft device and at the rearof said clevis with a socket 12, togetherwith sockets 13, intermediateof their ends,and rear end sockets 14:. Bars 15 are held to turn intransversely-alining sockets of the said straps 10. These bars may bepolygonal in cross-section or may be given any desired cross -sectionalshape. In Fig. 1 they are shown as rectangular, and in Figs. 3 and 4 thebars are shown as L-shaped, and teeth 16 are secured, preferably, to theouter front faces of the said bars 15 in any suitable or approvedmanner. Usually, however, U- shaped straps 17 are employed to hold theteeth in position, and normally one leg of a strap is carried indirection of theopposite leg, as shown in dotted lines in Fig. 8, andthe leg thus placed at an angle to the other leg is provided with a head18, forming a hook, while the other leg is provided with a threadedextremity adapted to receive a nut 19.

In operation the leg having the hook end 18 is introduced into anelongated opening 20 made in the bar, while the threaded end is passedthrough a round opening. The not 19 is then screwed upon the threadedleg only far enough to hold the strap in place. The pointed end of atooth 16 is then inserted into the strap 17 and is driven down thedesired distance, thus spreading apart the legs and lockin g thehook-leg in position upon the bar, and finally the nut 19 is screwedupon the threaded leg until the tooth 16 is firmly held in place. Thebars are prevented from shifting by pins 20, that are passed throughsaid bars adjacent to the sockets in which the bars turn, or anyequivalent of the pins 20 may be employed. Plates 21, adapted to smoothor pulverize the ground, are located between the toothed bars 15, andthese plates have a hinged connection 22 with the straps 10, the hingebeing shown at the forward edges of the plates, although, if desired,the position of the hinges may be changed.

Ordinarly each plate 21 is provided with lugs a, that extend upward atthe opposite sides of the straps, and the straps are provided withknuckles a, adapted to enter between the lugs. The hinge connection iscomconnected by a longitudinal bar 25, to which bar the hand-lever 23 isfulcrumed at the junction of its members. The hand-lever 23 is providedwith a thumb-latch 27, adapted to engage with a rack 28, secured uponthe longitudinal bar 24. Thus it will be observed that by shifting thehand-lever 23 all the toothed bars may be simultaneously rocked and theteeth given the same angle to the ground.

The plates 21 are moved independently of the toothed bars, as stated,and this is accomplished by providing uprights 29 for each plate nearits hinged edge, and these uprights are pivotally connected at the topby crossbars 30 and near the bottom by cross-bars 31. Braces 32 aresecured at one of their ends to the plates near their free edges, theupper ends of the braces being pivoted between the uprights 29.

A hand-lever 33 is provided to change the angle of the plates relativeto the ground, as shown in dotted lines in Fig. 1, and this handlever 33is preferably pivotally attached to the upper and lower longitudinalbars 30 and 31, the pivot-pins being designated, respectively, as 35 and34, and said lever 33 is also provided with a thumb-latch 36, thatengages with a rack 37, carried by one of the lower bars 31. Thus itwill be'observed that the plates may be independently raised andlowered, and likewise the toothed bars may be independently adjusted.

When the plates 21 are parallel with the ground and the teeth have beenadjusted, the plates will insure the teeth entering the ground thedesired distance only; but the plates may be raised so as to engage withthe ground only at their rear or free edges, as shown in dotted lines inFig. 1, so as to bear sharply upon the surface of the ground serving asa drag, the teeth at that time being above the surface of the ground.

In Fig. 5 I have shown aslight modification of the construction of mydevice, in which instead of the toothed bars 15 being mounted in socketsor bearings 13,carried by the straps 10, said bars are mounted inbearings 38, se-

the plates, and a shifting mechanism for the toothed bars.

2. In a harrow and pulverizer, a frame consisting of parallel strapsprovided with sockets at intervals in their length, toothed bars mountedto turn in said sockets, extending transversely of the frame, plateslocated between the toothed bars, said plates having their forwardlongitudinal edges hinged to the straps and their rear longitudinaledges free from the straps, a shifting lever connected with one of thetoothed bars, and link connections with the other toothed bars, aliftlever, and connections, substantially as described, between thelift-lever and the rear portion of all the plates, whereby all theplates may be simultaneously raised or lowered at the rear portions, asspecified.

3. In a harrow and pulverizer, the combination, with a frame consistingof parallel straps having sockets at intervals in their length,angle-bars mounted to turn in the sockets of the straps, each bar beingprovided with elongated openings and with circular openings adjacentthereto, spring-clips having one member provided with a hook and theother adapted to receive a nut, the members of the clips provided withhooks being adapted to enter elongated openings in the toothed bars andthe other members the adjacent circular openings in the toothed bars,teeth held within the clips in engagement with the said bars, and plateslocated between the toothed bars, the said plates having a hingedconnection at their forward edges with the said straps, of a leverattached to one of the toothed bars, standards attached to the othertoothed bars, and a connecting-rod pivotally connected with all of thestandards and with the said lever, standards secured to the said plates,connecting-bars pivotally attached to the upper and lower portions ofsaid standards, a lever pivotally attached to said connecting-bars, andlocking devices for the said levers, for the purpose set forth.

HENRY G. MOSIIER.

Witnesses:

CALVIN NELSON, O. E. MILLER.

